EP0384648B1 - Schliessmechanismus - Google Patents

Schliessmechanismus Download PDF

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Publication number
EP0384648B1
EP0384648B1 EP90301629A EP90301629A EP0384648B1 EP 0384648 B1 EP0384648 B1 EP 0384648B1 EP 90301629 A EP90301629 A EP 90301629A EP 90301629 A EP90301629 A EP 90301629A EP 0384648 B1 EP0384648 B1 EP 0384648B1
Authority
EP
European Patent Office
Prior art keywords
barrel
drive
locking mechanism
mechanism according
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90301629A
Other languages
English (en)
French (fr)
Other versions
EP0384648A1 (de
Inventor
Simon Whorlow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MG Rover Group Ltd
Original Assignee
MG Rover Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MG Rover Group Ltd filed Critical MG Rover Group Ltd
Publication of EP0384648A1 publication Critical patent/EP0384648A1/de
Application granted granted Critical
Publication of EP0384648B1 publication Critical patent/EP0384648B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/04—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7588—Rotary plug
    • Y10T70/7593—Sliding tumblers
    • Y10T70/7599—Transverse of plug
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7667—Operating elements, parts and adjuncts
    • Y10T70/7706—Operating connections
    • Y10T70/7712—Rollbacks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7915—Tampering prevention or attack defeating
    • Y10T70/7932—Anti-pick

Definitions

  • the present invention relates to locking mechanisms for closures and more particularly to door and boot locking mechanisms for motor vehicles.
  • a locking mechanism which includes a housing fixed to a vehicle the housing having a barrel rotatably mounted therein which is renderable into unlocked and locked modes respectively by insertion of a key into or withdrawal of the key from the barrel.
  • the barrel With the correct key inserted, locks and unlocks a door latch mechanism permanently connected thereto by rotation of the barrel in one direction or the other respectively. Rotation of the barrel, and hence unlocking of the door latch mechanism, is prevented with the barrel in the locked mode by a series of tumblers extending radially of the barrel into engagement with the fixed housing.
  • a locking mechanism for locking and unlocking a door latch mechanism
  • the locking mechanism including a housing for securing to a vehicle, a barrel rotatable within the housing, a drive selectively engageable between the barrel and the door latch mechanism and means to disengage the drive, wherein the barrel has an unlocked and a locked mode such that rotational movement of the barrel in the unlocked mode is communicated to the door latch mechanism via the drive, whilst rotation of the barrel in the locked mode operates the disengaging means to disengage the drive.
  • the locking mechanism according to the invention thus gives the advantage that it cannot be forced by forcible rotation of the barrel to allow unauthorised unlocking of the door latch mechanism.
  • the drive preferably includes driving and driven elements which are coaxial with the barrel and which are axially movable with respect to each other selectively to engage or disengage the drive.
  • the disengaging means may include means rotatable with the barrel when in the locked mode, said rotatable means producing said relative axial movement between the elements of the drive on being rotated with the barrel.
  • the relative axial movement between the drive elements may be produced by a cam mechanism, by a thread mechanism or by any other suitable mechanism which will produce axial movement of the rotatable means upon rotation thereof.
  • the rotatable means may extend as a sleeve around the barrel between the barrel and the housing and be connectible to the barrel, when in the locked mode, by a further drive extensible between a periphery of the barrel and itself; and the axial movement mechanism may thus conveniently operate between the sleeve and the housing.
  • the drive will preferably only be permitted to re-engage when the barrel is rotated to a pre-determined position. This position will normally be that in which a key may be inserted or withdrawn from the barrel.
  • the permitted re-engagement of the drive may occur when one or more cams in a said cam mechanism engage co-operating recesses in cam follower means.
  • a shaft may extend centrally and axially from one end of the barrel and may have a said driving element thereon.
  • a said driven element which may be in the form of an arm, may be slidably mounted on the shaft for selective engagement with the driving element to be rotatably driven by the shaft when engaged therewith.
  • the driven element is preferably urged towards the driving element by a resilient means, eg a spring.
  • stop means is engageable with the driven element, when the drive is disengaged, to prevent any movement of the driven element.
  • the stop means is conveniently operable to stop the driven element rotating with respect to the housing.
  • the mechanism includes a cylindrical barrel 1 having a keyway 2, the barrel being renderable into unlocked and locked modes respectively by insertion and withdrawal of an appropriate key (not shown) from the keyway 2.
  • the barrel has a shaft 3 extending axially from one end 5 thereof.
  • the shaft 3 has part of a drive in the form of a square drive 7 adjacent the end 5, a land 9 adjacent the square drive 7 and a circlip groove 11 adjacent the land 9.
  • a series of tumblers 13 extend, when the barrel is in its locked mode, radially outwardly from a periphery 15 of the barrel on either side thereof.
  • the barrel 1 is rotatably mounted in a housing 17 and axially located therein by a flange 19.
  • the flange 19 locates in an annular recess 21 in the housing 17.
  • rotatable means in the form of a cylindrical sleeve 23.
  • the sleeve has a pair of grooves 25 extending internally therealong to receive the tumblers 13 of the barrel 1, the grooves together with the tumblers forming a further drive.
  • the sleeve 23 includes part of a cam mechanism in the form of a circular axially extending face cam 27 having four lobes 29 thereon.
  • the face cam 27 co-operates with another part of the cam mechanism in the form of a follower 31 having recesses 33, each corresponding to a lobe 29.
  • Another part of the drive namely a driven element in the form of an arm 35 has a square drive aperture 37 loosely co-operating with the square drive 7 rotatably to drive, with the required lost motion, the arm 35 upon rotation of the barrel 1 in its unlocked mode.
  • the housing 17 has a stop in the form of a leg 39 having a foot 41 on a free end thereof extending towards the barrel axis.
  • the foot 41 is positioned to engage a slot 43 in the arm 35 when the arm is positioned on the land 9 of the shaft 3.
  • the arm 35 has a small aperture 45 for attachment of the arm to a latch mechanism (not shown).
  • a coil spring 49 is interposed between a thrust washer 51 which bears against a circlip 53 located in the circlip groove 11 and the arm 35 resiliently to urge the arm into engagement with the square drive 7.
  • FIGs 2 and 3 schematically show the position of the tumblers 13 with the correct key (not shown) inserted into the keyway 2 ( Figure 2) and with no key at all ( Figure 3).
  • the tumblers 13 will all be retracted within the barrel periphery 15, the coil spring 49 will be urging the arm 35 into engagement with the square drive 7, and rotation of the barrel 1 by the key will cause rotation of the arm 35 and thereby unlock or lock the latch mechanism, according to the direction in which the barrel is rotated.
  • the coil spring 49 will not only urge the arm into engagement with the square drive 7, but will also urge the recesses 33 on the follower 31 of the sleeve 23 into intimate contact with the cam lobes 29 of the face cam 27 and thus prevent rotation of the sleeve 23 during rotation of the barrel while unlocking or locking the latch mechanism.
  • Disengagement of the square drive takes place over just a few degrees of rotation of the barrel 1, and the barrel is linked to the latch mechanism sufficiently loosely through the appropriately formed square drive aperture 37 so that lost motion provided by the loose linkage allows disengagement of drive before unlocking or locking of the latch mechanism takes place.
  • the barrel 1 and sleeve 23 will be free to rotate through 360° within the housing 17 when the drive is disengaged. If the barrel 1 is left, after an unauthorised attempt to operate the latch, in a position other than as shown in Figure 1, insertion of the correct key and rotation of the barrel to the position of Figure 1 will allow the correspponding cams and recesses to re-engage one another whereupon the coil spring will urge the arm 35 back into engagement with the square drive 7 whilst returning the sleeve to its inoperative position. The arm 35 may then be turned in the desired direction by turning the key in the barrel to unlock or lock the latch mechanism.

Landscapes

  • Lock And Its Accessories (AREA)

Claims (12)

  1. Schließmechanismus zum Verriegeln und Entriegeln eines Türklinkenmechanismus, wobei der Schließmechanismus ein Gehäuse (17) zur Befestigung an einem Fahrzeug, eine innerhalb des Gehäuses drehbare Trommel (1), einen Antrieb (7, 37), der selektiv zwischen der Trommel und dem Türklinkenmechanismus angreifen kann, und eine Einrichtung (23) zum Lösen des Antriebs (7, 37) enthält, bei dem die Trommel (1) einen entriegelten und einen verriegelten Zustand hat, so daß eine Drehbewegung der Trommel im entriegelten Zustand auf den Türklinkenmechanismus über den Antrieb (7, 37) übertragen wird, wohingegen eine Drehung der Trommel (1) im verriegelten Zustand die Löseeinrichtung (23) bedient, um den Antrieb (7, 37) zu lösen.
  2. Schließmechanismus nach Anspruch 1, bei dem der Antrieb (7, 37) antreibende und angetriebene Elemente enthält, die mit der Trommel (1) koaxial sind und die in bezug zueinander axial beweglich sind, um selektiv am Antrieb anzugreifen oder ihn zu lösen.
  3. Schließmechanismus nach Anspruch 2, bei dem die Löseeinrichtung eine im verriegelten Zustand mit der Trommel (1) drehbare Einrichtung (23) enthält, wobei die drehbare Einrichtung die relative axiale Bewegung zwischen den Elementen des Antriebs (7, 37) erzeugt, indem sie mit der Trommel (1) gedreht wird.
  4. Schließmechanismus nach Anspruch 2 oder 3, bei dem die relative axiale Bewegung zwischen den Elementen des Antriebs (7, 37) von einem Nockenmechanismus (27, 31) erzeugt wird.
  5. Schließmechanismus nach Anspruch 4, bei dem die drehbare Einrichtung sich als Hülse (23) um die Trommel (1) zwischen der Trommel und dem Gehäuse (17) erstreckt und, wenn die Trommel im verriegelten Zustand ist, durch einen weiteren Antrieb (13, 25), der sich zwischen einem Umfang (15) der Trommel (1) und der drehbaren Einrichtung (23) erstrecken kann, mit der Trommel verbindbar ist.
  6. Schließmechanismus nach Anspruch 5, bei dem der Nockenmechanismus (27, 31) zwischen der Hülse (23) und dem Gehäuse (17) betreibbar ist.
  7. Schließmechanismus nach Anspruch 6, bei dem es dem Antrieb (7, 37) nur ermöglicht ist, wieder anzugreifen, wenn die Trommel (1) in eine vorbestimmte Lage gedreht ist.
  8. Schließmechanismus nach einem der Ansprüche 4 bis 7, bei dem das Wiederangreifen des Antriebs (7, 37) ermöglicht ist, nachdem einer oder mehrere Nocken (29) des Nockenmechanismus (27, 31) an einem oder mehreren zusammenwirkenden Vertiefungen (33) in der Nockenstößeleinrichtung (31) angegriffen haben.
  9. Schließmechanismus nach einem der Ansprüche 2 bis 8, bei dem eine Welle (3) sich in der Mitte und axial von einem Ende der Trommel (1) erstreckt und ein solches antreibendes Element (7) darauf mit einem solchen angetriebenen Element (35, 37) hat, das gleitend auf der Welle (3) angebracht ist, um selektiv an dem antreibenden Element (7) anzugreifen.
  10. Schließmechanismus nach Anspruch 9, bei dem das angetriebene Element (35, 37) durch eine Feder (49) zum antreibenden Element (7) hin vorgespannt ist.
  11. Schließmechanismus nach einem der vorhergehenden Ansprüche, bei dem genügend Leerlauf im Antrieb (7, 37) zwischen der Trommel (1) und dem Türklinkenmechanismus verhanden ist, damit der Antrieb gelöst wird, bevor der Klinkenmechanismus entriegelt wird, wenn die Trommel (1) im verriegelten Zustand gedreht wird.
  12. Schließmechanismus nach einem der Ansprüche 2 bis 11, bei dem eine Halteeinrichtung (39, 41) an dem angetriebenen Element (35, 37) angreifen kann, wenn der Antrieb gelöst ist, um jegliche Bewegung des angetriebenen Elementes (35, 37) zu verhindern.
EP90301629A 1989-02-23 1990-02-15 Schliessmechanismus Expired - Lifetime EP0384648B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8904155 1989-02-23
GB8904155A GB2228523B (en) 1989-02-23 1989-02-23 A locking mechanism

Publications (2)

Publication Number Publication Date
EP0384648A1 EP0384648A1 (de) 1990-08-29
EP0384648B1 true EP0384648B1 (de) 1992-12-23

Family

ID=10652203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90301629A Expired - Lifetime EP0384648B1 (de) 1989-02-23 1990-02-15 Schliessmechanismus

Country Status (5)

Country Link
US (1) US5070716A (de)
EP (1) EP0384648B1 (de)
JP (1) JPH02292475A (de)
DE (1) DE69000624T2 (de)
GB (1) GB2228523B (de)

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US5265453A (en) * 1990-11-30 1993-11-30 Alpha Corporation Cylinder lock
DE4122414C1 (de) * 1991-07-06 1992-12-03 Huelsbeck & Fuerst Schließzylinder
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FR2766512A1 (fr) * 1997-07-28 1999-01-29 Euro Locks Serrure a came neutralisable
DE19749329C1 (de) * 1997-11-07 1999-07-22 Huf Huelsbeck & Fuerst Gmbh Verschlußvorrichtung mit einem schlüsselbetätigbaren Zylinderkern
DE19823580C2 (de) * 1998-05-27 2000-12-07 Kiekert Ag Schließzylinderaggregat für einen Kraftfahrzeugtürverschluß
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US6058752A (en) * 1998-06-10 2000-05-09 Feder; George N. Pick-resistant lock system and method
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US6523382B1 (en) 1998-09-08 2003-02-25 Strattec Security Corporation Free wheeling lock assembly
DE29820711U1 (de) * 1998-11-19 2000-03-30 Ramsauer, Dieter, 42555 Velbert Drehriegelverschluß mit Zugeinrichtung
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GB2350146A (en) * 1999-05-13 2000-11-22 Rover Group Motor vehicle lock assembly
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US6978645B2 (en) * 2003-06-23 2005-12-27 Strattec Security Corporation Freewheeling lock apparatus and method
US20050115288A1 (en) * 2003-12-02 2005-06-02 Burmahln Jedediah A. Adjustable locking mechanism
DE102007023458A1 (de) * 2007-05-19 2008-11-20 Huf Hülsbeck & Fürst Gmbh & Co. Kg Schließzylinder für insbesondere in einem Fahrzeug ausführbare Funktionen
CN101196085B (zh) * 2007-12-13 2012-02-01 朱长洛 弹片式防盗锁
US8276416B2 (en) * 2009-02-18 2012-10-02 Vsi, Llc Master key lock, system and method
JP5739885B2 (ja) * 2009-07-24 2015-06-24 平頂山市大漢鎖業有限公司 連動式防犯シリンダー錠
US8099988B1 (en) * 2010-08-09 2012-01-24 Newfrey, Llc Tool-less rekeyable lock cylinder
US8291735B1 (en) 2011-03-31 2012-10-23 Newfrey, Llc Rekeyable lock cylinder having rotatable key followers
JP6074812B2 (ja) * 2013-12-13 2017-02-08 株式会社ホンダロック シリンダ錠装置
US20150211257A1 (en) * 2014-01-28 2015-07-30 Vsi, Llc Free-wheel lock and assembly
TWM521102U (zh) * 2015-08-28 2016-05-01 Lintex Co Ltd 鎖具
US11319726B2 (en) 2018-10-22 2022-05-03 Spectrum Brands, Inc. Tool-less rekeyable lock cylinder
CN110388136B (zh) * 2019-08-29 2024-05-10 深圳市弘博汇科技有限公司 丝杆拨块驱动式锁结构

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Also Published As

Publication number Publication date
GB2228523B (en) 1993-04-14
DE69000624T2 (de) 1993-04-22
DE69000624D1 (en) 1993-02-04
GB2228523A (en) 1990-08-29
JPH02292475A (ja) 1990-12-03
EP0384648A1 (de) 1990-08-29
GB8904155D0 (en) 1989-04-05
US5070716A (en) 1991-12-10

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